Shifting from large-scale greening to gray-space greening: Leveraging data to quantify the microclimate and energy benefits of viaduct under-spaces - Chunyan Ma; Yu Huang; Kai Yu; Zhou Liu; Fengyun Lan; Bin Liu; Jiaxin Ji; Yuxiang Liang; Chunyun Jia; Qianqian Sheng; Zunling Zhu (Energy and Buildings, 2026)